Sr System Administrator

The ideal candidate will have strong expertise in cloud administration, automation, security compliance, identity modernization, and application migration. This role supports mission-critical systems, works closely with security teams on ATO processes, and partners with multiple divisions to deliver secure, scalable, and modern infrastructure solutions.ResponsibilitiesAdminister and support Linux-based systems in on-premises and cloud environments.Serve as JIRA and Confluence Administrator, including configuration, user management, workflows, and space administration.Support STP processes, data transfer tasks, system migrations, and certifications across environments.Modernize authentication for SFD and WSG applications (55+) using SSO and PIV as MFA.Develop automation for infrastructure provisioning, application deployments, and tool upgrades using GitHub Actions, Terraform, Bash, and PowerShell.Automate database refresh processes, including schema and data copy from Production to lower environments.Implement automation for database password rotation and application redeployment on a regular cadence.Ensure security and compliance with standards across Azure toolchains and infrastructure.Lead and support application migrations from on-premises to Azure.Develop and maintain Data Flow Diagrams (DFDs) and Entity Relationship Diagrams (ERDs).Demonstrate deep understanding of data relationships, application architecture, and system interactions.Provide recommendations to improve security posture, monitoring, and observability using AIOps.Identify opport...